The volume of the sphere is 500 cubic units.
1 answer:
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Answer:
a) , where
.
b)
Step-by-step explanation:
The given sequence is
.
The first term of the sequence is
The second term is
The common ratio for this sequence can be determined using any two consecutive terms in the sequence.
Using the first two terms, the common ratio is
a) The recursive rule is given by,
, where
.
b) The explicit rule is given by
You can re-write this quotient this way :
What's inside the square root must be greater than or equal to 0, because the domain of the square root function is defined on R+ (which is [0,+∞))
In other word we must find x so that :
at the end we get
28(x-1) ≥ 0
28x - 28 ≥ 0
28x ≥ 28
x ≥ 1
So the answer is B, x ≥ 1